Nitrite (NO2-) as N Back Catalog number: 50628 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3996.9-K-CY Isobutylcyclopentane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 3788-32-7 Price on request 673917 Chloridazon-methyl-desphenyl, 100 µg/ml, Acetonit Price on request L429-PAR Method 429 Native PAH Stock Solution, 1.2ml, isooctane Price on request